Lee McCoy improves three rankings to world number five after an impressive showing in the PGA Tour’s Valspar Championship. The U.S. Walker Cup player finished in fourth position after posting a 4-under-par 280 total, three shots out of playoff between Charl Schwartzel and Bill Hass, which Schwartzel won.

Horsfield becomes highest ranked GB&I player

England’s Sam Horsfield becomes the leading Great Britain & Ireland player on the World Amateur Golf RankingTM after his second win in his last three college tournaments.

The University of Florida student rises five places this week to 10th, three places above Ireland’s Jack Hume, after a four-shot victory in the Southern Highland Collegiate in Las Vegas. Horsfield was the only player to break par in every round, returning scores of 69, 70 and 70 for a 7-under-par 209 total.

Lebioda soars at Seminole

Hank Lebioda advances 11 rankings to 22nd courtesy of winning the Seminole Intercollegiate. The Florida State player posted an 8-under-par 208 to win by a shot.

Win takes NeSmith into top 10

American Matthew NeSmith moves into the top 10 with a two-ranking rise to ninth after winning the Cleveland Golf Palmetto Invite.

Top 20 movers

Chile’s Joaquin Niemann is the only new top 20 entry with a move of one spot to 20th.

Top 50 movers

Robert MacIntyre of Scotland and American Chase Koepka break into the top 50. MacIntyre climbs five places to 46th. Koepka, brother of PGA Tour player Brooks, improves 14 places to 49th after winning the Mission Inn Spring Spectacular.

Biggest ranking improvement

Matt Cowgill of the United States is the week’s highest riser with a jump of 1,657 rankings to world number 3,121.

The Women

Performances of the week

Closing 67 gives Spang fifth win

Sweden’s Frida Gustafsson-Spang makes an impressive move on this week’s World Amateur Golf RankingTM after notching up her fifth college golf victory. The University of East Carolina player returned a final round of 5-under-par 67 to win the 3M Augusta Invitational at Forest Hills Golf Club in Augusta, Georgia. The final year student began the last round in eighth place, but posted a 5-under-par 211 total for a one-shot victory. Gustafsson-Spang jumps 26 rankings to world number 54.

Thothong and Gilbreth share UNF Collegiate

Americans Megan Thothong and Emily Gilbreth were declared joint winners of the UNF Collegiate after finishing on 1-over-par 217 totals. The University of Houston teammates finished a stroke ahead of the field at Jacksonville Golf & Country Club in Florida. Thothong climbs 50 spots to 173rd, while Gilbreth advances 65 places to 258th.

Graebe grabs Clover Cup

Brooke Graebe of the United States advances 104 places to 233rd on this week’s ranking with victory in the Clover Cup. The Texas Christian University player eked out a one-shot victory after posting a 6-under-par 210 total.

Top 20 movers

Korea’s Eun-jeong Seong is the only new top 20 player. She rises two places this week to 20th.

Top 50 movers

Ya-Chun Chang of Taipei is the only player to break into the top 50. She advances two places to 49th.

Biggest ranking improvement

Natalia Aseguinolaza Martin of Spain is the most improved player this week by climbing 574 rankings to world number 1,829.